Solving IT systems contradictions with TRIZ
- Yaakov Preiger
- 30 мар.
- 19 мин. чтения
Обновлено: 19 апр.
1. The Iron Triangle (Triple Constraint)
Contradiction: You cannot optimize scope, time, and cost simultaneously. You must choose two and compromise on the third.
Example: More features (scope) may increase time or cost. Tight deadlines may require cutting scope or increasing cost.
TRIZ Principle: Principle 1: Segmentation
Principle Description in the Context: Segmentation involves breaking a large problem into smaller, more manageable parts. Each part can be optimized for specific constraints (scope, time, cost), thus reducing the need to compromise all three simultaneously.
Addressing the Contradiction with this Principle: By segmenting a large project into smaller parts, it becomes easier to focus on optimizing specific constraints per segment. For example, scope can be reduced in one segment to meet the time constraint, while the cost is prioritized in another segment.
How Segmentation Can Apply to The Iron Triangle:
Modular Development: Break the project into modules, with each module having its scope, time, and cost optimized independently. For example, Agile sprints focus on delivering small, working components quickly, which allows time and cost management within each sprint.
Example: In Agile, the scope of a sprint is often fixed, with time and cost constraints being adjusted to ensure delivery within the sprint.
MVP (Minimum Viable Product): Release a version of the product with only core features, minimizing scope, and reducing time and cost pressures.
Example: In startup development, MVPs help focus on the essential features first, minimizing the scope and reducing time and cost to get to market quickly.
2. The IT Trilemma (Availability, Performance, Cost)
Contradiction: You can optimize availability, performance, and cost, but only two of these three at a time.
Example: Ensuring high availability (redundancy) and high performance increases costs, while reducing costs might reduce both performance and availability.
TRIZ Principle: Principle 10: Preliminary Action
Principle Description in the Context: Preliminary Action involves anticipating potential issues before they occur and preparing the system to handle them proactively. In the context of this trilemma, it can be used to plan for dynamic trade-offs between availability, performance, and cost.
Addressing the Contradiction with this Principle: By proactively managing the allocation of resources and anticipating future needs, it's possible to optimize for performance and availability in the short term while preparing for cost optimization over time.
How Preliminary Action Can Apply to The IT Trilemma:
Cloud Auto-scaling: Using cloud auto-scaling, you can dynamically adjust resources to ensure high availability without burdening the performance or incurring high costs. Predictive analytics help anticipate spikes in load and adjust resources accordingly.
Example: AWS's auto-scaling adjusts resources based on traffic, allowing performance and availability without incurring additional cost unnecessarily.
Load Balancing with CDN: Use Content Delivery Networks (CDN) to offload static content, ensuring high performance and availability, while also managing costs by reducing traffic on central servers.
Example: In video streaming, CDNs cache content at edge locations, reducing server load, improving performance, and maintaining availability without increasing infrastructure costs.
3. The CAP Theorem
Contradiction: In a distributed system, you cannot have consistency, availability, and partition tolerance simultaneously.
Example: You can choose two:
CP (Consistency + Partition Tolerance) — but not availability.
AP (Availability + Partition Tolerance) — but not consistency.
CA (Consistency + Availability) — but not partition tolerance.
TRIZ Principle: Principle 13: The Other Way Around
Principle Description in the Context: The principle suggests flipping the problem or changing perspectives. Instead of trying to meet all three constraints simultaneously, decide which is the least critical in a given situation and focus on optimizing it.
Addressing the Contradiction with this Principle: Flip the priorities depending on the specific requirements of the operation, focusing on what is least critical. In a network partition, prioritize availability and partition tolerance (AP), ensuring the system continues to work even if data isn't fully consistent.
How The Other Way Around Can Apply to The CAP Theorem:
Eventual Consistency in NoSQL Databases: In systems like Cassandra, availability and partition tolerance are prioritized, accepting eventual consistency as a trade-off.
Example: Cassandra allows writes to happen on any node, ensuring the system is available even during partitions, and data will be consistent later when the partition is resolved.
Master-Slave Replication: In a master-slave database setup, consistency and partition tolerance are prioritized by allowing temporary unavailability. Once the partition resolves, consistency is restored.
Example: Redis, in a master-slave replication model, ensures data consistency during partitions but may temporarily be unavailable until the partition is resolved.
4. Consistency vs. Latency
Contradiction: Ensuring consistency (i.e., every node sees the same data at the same time) can increase latency (delay), as the system must synchronize data across all nodes before responding.
Example: Strong consistency systems (like Zookeeper) may add latency compared to eventually consistent systems (like Cassandra).
TRIZ Principle: Principle 5: Merging
Principle Description in the Context: Merging involves combining two or more elements into one, optimizing both in a balanced way. Here, merging consistency and latency means developing hybrid approaches to maintain data consistency without significantly increasing latency.
Addressing the Contradiction with this Principle: By merging data consistency and latency, systems can prioritize critical data for consistency while allowing less important data to be eventually consistent, which reduces latency.
How Merging Can Apply to Consistency vs. Latency:
Quorum Reads/Writes: By using quorum-based reads and writes, systems can ensure some level of consistency while allowing for faster responses by compromising on some data synchronization.
Example: MongoDB uses quorum-based reads and writes, prioritizing consistency for critical operations while reducing latency for less important data.
Eventual Consistency with Staleness Tolerance: Systems like content management systems can use eventual consistency where data might be slightly stale but responses are faster, maintaining a balance between consistency and latency.
Example: A CMS may allow for some data to be eventually consistent, prioritizing quick page loads and user interactions while allowing for slight data discrepancies in the background.
5. Availability vs. Consistency (Eventual Consistency)
Contradiction: Systems that prioritize availability (always return a result) may return inconsistent data when network failures or partitions occur.
Example: Cassandra prioritizes availability and allows eventual consistency, meaning data might be stale but the system remains operational.
TRIZ Principle: Principle 14: Spheroidality
Principle Description in the Context: Spheroidality suggests introducing more fluid, adaptive synchronization mechanisms to allow systems to handle inconsistencies without compromising availability. It allows for a gradual synchronization process, making systems more flexible and adaptable.
Addressing the Contradiction with this Principle: By thinking of consistency and availability as a more flexible and dynamic process, you can ensure that the system remains available during failures while gradually synchronizing the data over time once the issue resolves.
How Spheroidality Can Apply to Availability vs. Consistency:
Gradual Synchronization: The system can gradually synchronize across nodes, allowing temporary inconsistencies while maintaining availability.
Example: In Cassandra, writes are allowed to happen on any node, ensuring availability. Once the partition heals, data is gradually synchronized across nodes, ensuring eventual consistency.
Flexible Consistency Models: Implementing different levels of consistency for different types of data allows flexibility. For non-critical data, eventual consistency is acceptable, while for critical data, strong consistency is enforced.
Example: For non-essential data, like user preferences, eventual consistency can be allowed, whereas for critical data like bank transactions, strict consistency is prioritized.
6. Flexibility vs. Performance
Contradiction: Building a flexible system (e.g., microservices, or easily upgradable) often increases the complexity and overhead, which can hurt performance.
Example: A microservices architecture may introduce performance overhead due to inter-service communication via the network.
TRIZ Principle: Principle 11: Cushion in Advance
Principle Description in the Context: Cushion in Advance involves preparing the system for challenges or performance bottlenecks ahead of time, ensuring that performance is not hindered by the flexibility or complexity introduced.
Addressing the Contradiction with this Principle: By anticipating the performance overhead that flexibility introduces, the system can be designed to handle this overhead efficiently. This can be achieved by employing asynchronous processing, caching, and load balancing to mitigate the effects of the increased complexity of flexible systems.
How Cushion in Advance Can Apply to Flexibility vs. Performance:
Caching and Data Storage: Implement caching layers (e.g., Redis) to store frequently accessed data, reducing the need for network calls between services. This approach allows the flexibility of microservices without significant performance degradation.
Example: Using Redis for session management or frequently accessed data in a microservices architecture can reduce response times and improve overall system performance.
Asynchronous Processing: By processing requests asynchronously, you can reduce the strain on the system caused by flexibility. Message queues can decouple services, allowing for non-blocking operations.
Example: Using RabbitMQ or Kafka to process tasks asynchronously in a microservices architecture, allowing the system to maintain high performance while ensuring flexibility.
7. Security vs. Usability
Contradiction: Higher security measures (e.g., encryption, authentication) often make a system less user-friendly (more steps for users to access or complete tasks).
Example: Multi-factor authentication (MFA) improves security but can create friction in the user experience.
TRIZ Principle: Principle 16: Partial or Excessive Action
Principle Description in the Context: This principle suggests performing some actions partially or to an excessive degree to achieve the desired result more efficiently. In the case of security and usability, this could mean implementing security features in a way that minimizes the impact on user experience, such as automating part of the process or integrating authentication methods seamlessly.
Addressing the Contradiction with this Principle: Instead of requiring users to manually go through multiple security steps, automate or streamline parts of the process to reduce friction. For example, using single sign-on (SSO) or biometric authentication can help balance security with user convenience.
How Partial or Excessive Action Can Apply to Security vs. Usability:
Single Sign-On (SSO): By integrating SSO with strong authentication methods (like OAuth or SAML), users only need to authenticate once, reducing friction while ensuring security.
Example: Using Google’s OAuth for third-party authentication reduces the number of times users need to log in while ensuring strong security.
Biometric Authentication: Integrating biometric authentication (e.g., fingerprint or face recognition) provides secure access without compromising usability, reducing the number of steps required for authentication.
Example: On mobile devices, Apple’s Face ID or Touch ID allows users to authenticate quickly and securely, balancing security and usability.
8. Scalability vs. Complexity
Contradiction: Increasing scalability (e.g., making a system more capable of handling large loads or growing) often leads to increased complexity in system design and management.
Example: Cloud-native systems that scale on demand require sophisticated orchestration, monitoring, and management systems, which add complexity.
TRIZ Principle: Principle 3: Local Quality
Principle Description in the Context: Local Quality suggests focusing on improving specific areas of the system that need it most, rather than trying to improve the entire system uniformly. In this case, scalability can be enhanced by targeting the most critical parts of the system and scaling them independently without increasing complexity in other areas.
Addressing the Contradiction with this Principle: By scaling individual components that require the most resources (e.g., database, cache), and maintaining simplicity in other parts of the system, you can improve scalability without introducing unnecessary complexity.
How Local Quality Can Apply to Scalability vs. Complexity:
Microservices Architecture: In a microservices architecture, scale only those services that require additional resources, instead of scaling the entire monolithic system. This allows the system to scale efficiently while avoiding unnecessary complexity.
Example: Netflix scales individual microservices like video streaming and recommendations independently based on traffic, while keeping other services simple and lightweight.
Auto-scaling and Containerization: Use containerization and auto-scaling to manage scalability. With tools like Kubernetes, you can scale specific parts of the application based on load without adding extra complexity to the system.
Example: Google Kubernetes Engine (GKE) automatically scales containers and clusters based on demand, ensuring scalability with minimal complexity in the infrastructure.
9. Centralization vs. Decentralization
Contradiction: Centralized systems are easier to manage, but decentralization provides better scalability and fault tolerance.
Example: A centralized database is easier to manage and secure but has limitations in terms of performance and fault tolerance compared to decentralized databases like blockchain.
TRIZ Principle: Principle 19: Periodic Action
Principle Description in the Context: Periodic Action suggests that processes or actions can occur at regular intervals, or in cycles, which helps balance the advantages of both centralized and decentralized approaches.
Addressing the Contradiction with this Principle: By employing periodic synchronization or hybrid architectures, where central systems handle management and control, and decentralized systems provide resilience and scalability, you can get the benefits of both. Regular updates and syncs ensure consistency between the two models.
How Periodic Action Can Apply to Centralization vs. Decentralization:
Hybrid Centralized-Decentralized Systems: In a hybrid cloud model, central servers manage control and monitoring, while decentralized systems (like edge computing) handle data processing closer to the user.
Example: AWS Lambda functions can process data locally in a decentralized manner while centralized systems like Amazon S3 manage storage and control.
Blockchain for Decentralized Trust with Centralized Control: Use blockchain for decentralized transactions but keep centralized control over security and regulatory compliance.
Example: IBM Blockchain integrates decentralized blockchain solutions with centralized management to ensure data integrity while maintaining regulatory oversight.
10. Speed vs. Quality
Contradiction: Developing software faster often leads to reduced quality, as testing and refinement processes may be skipped or shortened.
Example: A rapid development cycle (e.g., in Agile) might lead to faster releases but could result in more bugs or reduced functionality in each release.
TRIZ Principle: Principle 7: Nested Doll (Matryoshka Principle)
Principle Description in the Context: Nested Doll suggests that a large system or solution can be broken down into smaller, independent parts that are easy to manage and improve. This can help address quality and speed by allowing different teams to focus on parts of the system, improving quality at each stage.
Addressing the Contradiction with this Principle: By organizing the development process into smaller, modular components, teams can focus on perfecting smaller chunks of the system, ensuring better quality in each part while still delivering a product quickly.
How Nested Doll Can Apply to Speed vs. Quality:
Modular Development: Break down the development process into smaller modules, each of which can be developed, tested, and refined independently. This allows for quicker release cycles while ensuring each module meets high quality standards.
Example: Microservices architecture allows teams to release new features rapidly while maintaining the ability to test and improve individual services without affecting the entire system.
Test-Driven Development (TDD): In TDD, developers write tests before writing code, which ensures that each small module is thoroughly tested. This approach helps maintain high-quality code while keeping development speed high.
Example: In Agile development, testing each module in isolation before integration helps ensure quality without delaying the delivery.
11. Modularity vs. Overhead
Contradiction: More modular systems (e.g., microservices) allow for flexibility and independent upgrades, but they introduce significant overhead in communication, management, and orchestration.
Example: Microservices architectures involve many services communicating over networks, which adds latency and complexity compared to a monolithic design.
TRIZ Principle: Principle 15: Dynamics
Principle Description in the Context: Dynamics refers to making systems more adaptable by enabling flexible, real-time adjustments in response to changes. Instead of adding complexity to handle modularity, dynamic systems can introduce flexible mechanisms that balance overhead with performance.
Addressing the Contradiction with this Principle: By introducing dynamic systems that adapt to the load and simplify communication overhead, microservices can be optimized. For example, dynamic orchestration tools that handle service discovery and fault tolerance can reduce the manual complexity and improve system flexibility without sacrificing performance.
How Dynamics Can Apply to Modularity vs. Overhead:
Automated Service Discovery and Load Balancing: Dynamic orchestration tools like Kubernetes automatically handle service discovery, load balancing, and scaling, reducing the complexity and overhead of microservices while ensuring the system adapts to changes in demand.
Example: Kubernetes allows microservices to scale automatically based on traffic, reducing the management overhead and improving performance dynamically.
Event-Driven Architecture: Implement event-driven architectures where microservices communicate asynchronously through message queues like Kafka. This reduces the need for synchronous communication between services, lowering overhead and increasing flexibility.
Example: Apache Kafka is used to decouple microservices in real-time systems, allowing services to act independently and reducing the communication overhead.
12. Reliability vs. Cost
Contradiction: Ensuring high reliability (e.g., redundant servers, backups, high-quality hardware) typically increases cost.
Example: A fault-tolerant system with failover and backups will cost more to build and maintain than a simpler, less reliable system.
TRIZ Principle: Principle 6: Universality
Principle Description in the Context: Universality involves using a single resource or solution for multiple purposes, reducing complexity and cost. In terms of system reliability, a universal approach means using standardized, cost-effective solutions that fulfill multiple requirements, such as redundancy, scalability, and fault tolerance, without incurring excessive costs.
Addressing the Contradiction with this Principle: By using universal solutions like cloud-based services and infrastructure-as-code tools, reliability can be achieved without significantly increasing costs. Cloud providers like AWS, Google Cloud, and Azure offer low-cost, highly reliable infrastructure services that provide fault tolerance and backups at a reasonable cost.
How Universality Can Apply to Reliability vs. Cost:
Cloud Infrastructure: Using cloud services provides redundancy and backup at a low cost, as these services scale automatically without requiring heavy upfront investment in physical infrastructure.
Example: AWS S3 provides reliable data storage with built-in redundancy and backups, which would be far more expensive to implement in an on-premise solution.
Infrastructure as Code (IaC): By using IaC tools like Terraform, companies can automate the provisioning of reliable infrastructure with minimal cost, as it reduces manual management overhead and ensures fault tolerance by default.
Example: AWS CloudFormation allows developers to define reliable infrastructure in code, enabling consistent and fault-tolerant deployments at scale.
13. Innovation vs. Stability
Contradiction: Innovative systems (using new technologies) tend to be less stable due to the lack of maturity and potential for unknown issues, while stable systems might lack cutting-edge features.
Example: A system using cutting-edge AI for predictions might face stability issues, whereas a traditional system using well-established algorithms might be more stable but less innovative.
TRIZ Principle: Principle 17: Another Dimension
Principle Description in the Context: Another Dimension suggests looking at the problem from a different perspective or adding a new dimension to the solution. In the case of balancing innovation with stability, it involves separating the cutting-edge and stable components of the system to allow each to evolve independently without compromising overall system stability.
Addressing the Contradiction with this Principle: Separate innovative and stable components in the system, such as using cutting-edge technologies for certain parts (e.g., predictive models) while maintaining stability in core system components (e.g., databases, transaction processing) to avoid the instability of the entire system.
How Another Dimension Can Apply to Innovation vs. Stability:
Hybrid Systems: In a hybrid cloud system, the core business logic (which must be stable) runs on traditional servers, while innovative features like AI-based recommendations run on the cloud, where they can be tested and iterated without affecting the stability of the core system.
Example: Uber uses a combination of traditional relational databases for transactional data and machine learning models for personalized recommendations, allowing both innovation and stability.
Modular Innovation: Develop the innovative part of the system as a modular service that interacts with the stable system via well-defined APIs. This allows you to innovate in a contained environment, reducing the risk to system stability.
Example: Spotify developed its recommendation algorithms independently of its core music streaming infrastructure, allowing both to evolve without compromising the stability of the entire platform.
14. Open-Source vs. Commercial Solutions
Contradiction: Open-source solutions are often more flexible and cost-effective, but they may lack professional support, documentation, or advanced features compared to commercial solutions, which may provide more features and better support at a higher cost.
Example: Open-source tools like Linux and MySQL are customizable and free but might lack the professional support of commercial solutions like Windows Server or Oracle DB.
TRIZ Principle: Principle 16: Partial or Excessive Action
Principle Description in the Context: Partial or Excessive Action suggests that you can overcome limitations by taking partial actions or excessive steps in one area to achieve the desired result. In the context of this contradiction, it means leveraging open-source solutions for flexibility and cost-efficiency, while complementing them with selective commercial support or services for critical parts of the system.
Addressing the Contradiction with this Principle: Use open-source solutions for general tasks and processes, but employ commercial solutions or support for specific, mission-critical parts of the infrastructure, thus balancing cost and features.
How Partial or Excessive Action Can Apply to Open-Source vs. Commercial Solutions:
Open-Source for General Use, Commercial Support for Critical Areas: Use MySQL or PostgreSQL for general database needs, but use Oracle or Microsoft SQL Server for highly critical, enterprise-grade systems that require dedicated support.
Example: Wikipedia uses open-source software but employs commercial support for some parts of its infrastructure, ensuring flexibility without sacrificing necessary features.
Open-Source with Paid Add-ons: Many open-source solutions allow for paid add-ons or plugins that provide advanced features and professional support, combining the best of both worlds.
Example: Red Hat provides an enterprise version of Linux with commercial support, allowing companies to use an open-source system while ensuring that support is available when needed.
15. Cloud vs. On-Premise
Contradiction: Cloud solutions are scalable and cost-efficient for many use cases but may introduce latency or security concerns, whereas on-premise solutions provide better control and security but are expensive and harder to scale.
Example: Amazon Web Services (AWS) offers elasticity and cost-effectiveness but may involve security risks and latency issues, whereas an on-premise system ensures control and security but can be expensive to manage.
TRIZ Principle: Principle 24: Mediator
Principle Description in the Context: The Mediator principle involves introducing an intermediary or intermediary system that facilitates interaction between two conflicting elements. In this case, the mediator could be a hybrid approach that combines the scalability and cost-efficiency of the cloud with the control and security of on-premise systems.
Addressing the Contradiction with this Principle: Use a hybrid cloud architecture that leverages the cloud for non-sensitive operations that require scalability and elasticity, while maintaining an on-premise solution for critical, sensitive data to ensure security and control.
How Mediator Can Apply to Cloud vs. On-Premise:
Hybrid Cloud Systems: Implement a hybrid cloud solution, where core operations are run on-premise for control and security, and non-sensitive data or workloads are handled in the cloud to optimize scalability and reduce costs.
Example: A financial institution might store sensitive customer data on-premise while using the cloud for analytics and marketing automation.
Edge Computing: In a cloud-edge hybrid model, critical services can be processed on local edge devices to reduce latency, while cloud resources are used for heavy computation, allowing scalability without sacrificing performance.
Example: IoT applications use edge computing to process data locally for low-latency needs while syncing with cloud resources for data storage and large-scale processing.
16. Speed of Development vs. Documentation
Contradiction: Fast development may lead to lack of proper documentation, resulting in challenges when maintaining or scaling the system in the future.
Example: In Agile methodologies, speed and responsiveness to change are prioritized, often at the expense of creating detailed system documentation.
TRIZ Principle: Principle 9: Prior Counteraction
Principle Description in the Context: Prior Counteraction suggests preparing for potential challenges in advance, including addressing potential gaps (e.g., documentation) early in the development process. In this case, it means automating or generating documentation alongside development to avoid compromising speed.
Addressing the Contradiction with this Principle: By implementing automated documentation tools alongside the development process (such as Swagger for APIs or Javadoc for Java code), the system can remain flexible and agile while ensuring that documentation is generated concurrently.
How Prior Counteraction Can Apply to Speed of Development vs. Documentation:
Automated Documentation Generation: Use tools that generate API documentation automatically as code is written, reducing the effort required for manual documentation and ensuring that it stays up-to-date.
Example: Swagger generates API documentation directly from annotations in code, ensuring documentation is maintained without slowing down development.
Test-Driven Documentation: Implement documentation as part of the Test-Driven Development (TDD) approach. When writing tests for features, documentation for the system can be automatically generated or updated as the tests evolve.
Example: Javadoc automatically generates HTML documentation from Java code comments, ensuring developers do not need to manually write documentation.
17. Data Consistency vs. Data Availability
Contradiction: Ensuring data consistency (e.g., with ACID transactions) can limit availability (e.g., in the event of network partitioning), while prioritizing availability may sacrifice consistency (e.g., in eventual consistency).
Example: SQL databases focus on consistency, while NoSQL databases like Cassandra prioritize availability and partition tolerance.
TRIZ Principle: Principle 12: Equipotentiality
Principle Description in the Context: Equipotentiality involves adjusting the system so that all components have equal capability, reducing the constraints of one part on another. In the context of consistency vs. availability, this principle suggests creating a balanced approach where data consistency and availability are balanced dynamically, depending on the criticality of the data and the current system state.
Addressing the Contradiction with this Principle: By using multi-tiered consistency models and eventual consistency, systems can ensure that critical data is consistent, while less critical data can remain available even when consistency is not fully guaranteed.
How Equipotentiality Can Apply to Data Consistency vs. Data Availability:
Eventual Consistency with Contextual Guarantees: Implement a multi-level consistency model where data critical to business operations (e.g., financial transactions) is consistently maintained, while less critical data (e.g., user preferences) is eventually consistent.
Example: Cassandra provides eventual consistency by default but allows for tunable consistency, enabling applications to choose strong consistency for key data while allowing eventual consistency for other data.
Quorum-Based Consistency: Use quorum-based reads and writes to ensure a balance between consistency and availability. By adjusting the quorum level, the system can prioritize availability for less critical data while ensuring consistency for critical data.
Example: In Cassandra, quorum-level consistency for writes ensures that data is written to multiple nodes, improving reliability while allowing read consistency to be adjusted based on the requirements.
18. Control vs. Automation
Contradiction: Automation increases speed and efficiency, but it reduces control over the process. Having more manual control typically leads to greater oversight but slower processes.
Example: Using CI/CD pipelines to automate deployment improves speed but limits manual oversight in certain cases.
TRIZ Principle: Principle 2: Taking Out
Principle Description in the Context: Taking Out suggests removing unnecessary components or actions to simplify a system. In this case, it means automating manual processes that are slow and prone to error while maintaining manual control where it is critical, reducing friction between speed and control.
Addressing the Contradiction with this Principle: Identify areas that do not require human intervention and automate them to reduce manual overhead. Where control is important, introduce monitoring and oversight systems that allow quick adjustments while keeping automation in place for efficiency.
How Taking Out Can Apply to Control vs. Automation:
Automating Routine Tasks: Automate repetitive and routine tasks in the CI/CD pipeline (e.g., build, test, deploy) to reduce human error and speed up the process, while leaving manual approval steps or configuration changes for critical actions.
Example: Implement GitLab CI/CD pipelines, where automated tests and deployments occur automatically, but manual approval gates are kept for production deployment.
Robust Monitoring with Automated Alerts: Automate monitoring and anomaly detection, but maintain manual control over the response to alerts. This way, you ensure efficiency in detecting issues while still allowing human expertise to drive decision-making in critical scenarios.
Example: Datadog or Prometheus can automatically monitor system health and alert teams to issues, but human intervention is required to act on critical issues.
19. Short-Term Success vs. Long-Term Scalability
Contradiction: Focusing on short-term success (rapid deployment, quick features) may result in a lack of proper planning for long-term scalability, while optimizing for scalability can delay short-term results.
Example: A rapid release of features in the early stages of a product might lead to scalability issues later on as the user base grows.
TRIZ Principle: Principle 18: Mechanical Vibration
Principle Description in the Context: Mechanical Vibration involves introducing controlled oscillations or adjustments to avoid overly rigid systems. For scalability, this principle suggests introducing iterative steps that allow for short-term success while keeping the long-term plan for scalability in mind.
Addressing the Contradiction with this Principle: By using iterative scaling and adjusting the architecture incrementally, short-term needs can be met without compromising long-term scalability. This allows for continuous growth and adaptation while avoiding bottlenecks.
How Mechanical Vibration Can Apply to Short-Term Success vs. Long-Term Scalability:
Iterative Scaling: Use microservices and cloud-native technologies to scale specific parts of the system progressively. This allows for rapid development while planning for scalability through modular growth.
Example: Start with a monolithic architecture for rapid development, then gradually refactor into a microservices architecture as the product grows and requires scalability.
Feature Flags for Gradual Scaling: Implement feature flags to gradually release features, allowing the team to scale the backend infrastructure incrementally while testing features in smaller batches for scalability.
Example: Use LaunchDarkly to control the rollout of features in production, ensuring that the system scales effectively without overwhelming infrastructure.
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