Please answer these True or False questions, and give short description of why are they false.

T/F Increasing system complexity is one of the major causes of software failures. T/F Roughly 60% of software costs are development costs, and 40% are testing costs. T/F Generic products are sponsored by and developed for a specific customer. T/F Sought product characteristics are generally specified as part of the non-functional requirements a software product. Engineering disciplines focus on getting solutions/results of the required quality within T/F schedule and budge within the specified constraints. T/F Engineering disciplines define methods and techniques to do the required work systematically an in an organized manner. Batch processing systems control and manage hardware devices. T/F In principle, the result of each phase in the waterfall model is completed with the production of a deliverable or artifact which should be approved or signed-off by the relevant parties before the next phase is started. T/F Critical systems where there is a need for extensive safety and security analysis of the software specification and design should use waterfall software development process. T/F In custom products, the organization that develops the software controls the software specification. For generic products, the specification is developed and controlled by the organizati that is buying the software. T/F Operation and maintenance process/phase is normally, the longest software development life-cycl phase. Its cost overweighs the development costs of the software systems. T/F Incremental development does not mean that you have to deliver each increment to the system customer. You can develop a system incrementally and expose it to customers and other stakeholders for comment, without necessarily delivering it and deploying it in the customer's environment. Incremental delivery, where system increments are delivered to the customer for comment and T/F experimentation. This supports both change avoidance and change tolerance. In the requirements engineering phase/process, a prototype can be used to explore software solutions and in the development of a user interface for the system. T/F T/F Each sprint cycle lasts a fixed length of time, which is usually between 2 and 4 weeks. If the assumed work cannot be completed within this timeframe, the sprint cycle is extended to include the required additional time