Requirements Management solutions enable companies to define and elaborate requirements and manage them throughout the development lifecycle and testing phases.
Requirements are usually „owned” by clients and are typically determined by the marketplace, an external force constantly changing along with customer expectations.
Since market demands and customers expectations change rapidly these days; requirements and requirements management documents must also do the same.
How Waterfall Approach Affects Requirements Management and the Final Products
Waterfall approach is all about avoiding constant changing requirements and therefore avoiding having to update requirements constantly. The team starts the development process based on the requirements at a moment in time. Since the Waterfall approach makes it very difficult to implement any changes, requirements might be updated during the development process but only with requirements that are classified as „essential/vital”. Not updating requirements and requirements management related documents might minimize the development costs but it also makes it impossible for the team to see if the product they develop still / will meet customers’ expectations or not; – which can be more costly at the end.
Keep Your Requirements up-to-date with Agile Software Development
Requirements Management is considered one of the biggest weaknesses of the Waterfall method. Agile software development is a response to this failure. Agile software development enables clients to change requirements; and it allows development teams to implement changes over time in incremental steps which makes sure that the requirements management documents are always up-to-date. Due to these constant updates, teams can see and respond to the changed requirements immediately, this enables them to deliver measurable value and avoid developing products or features that are no longer requested or required.
Developers usually use a backlog of stories at the beginning start of every iteration; these backlogs are used to adapt the development process to the latest changes. Team members can find and use cases and requirements to trace products updates to understand why and how to implement certain changes. Changing requirements for one project might very well effect other software development projects across the enterprise and therefore requirements documentation may also need updating for other projects.
By adopting Agile-Waterfall Hybrid method software development teams using Waterfall can gain some of the flexibility that changing requirements demand, reducing the risk of potential project failure later on.
The requirements reuse functionality of codeBeamer ALM software solution enables to take requirements from other projects and use them for new/other projects. It simplifies requirements management and minimizes the administration costs.
Learn more about the most important details of the Agile-Waterfall Hybrid approach.