Software maintenance upkeep is generally acknowledged piece of SDLC now a days. It remains for every one of the adjustments and updations done after the conveyance of programming item.
Necessities investigation includes visit correspondence with framework clients to decide particular component desires, determination of contention or vagueness in prerequisites as requested by the different clients or gatherings of clients, shirking of highlight crawl and documentation of all parts of the undertaking advancement process through and through. Vitality ought to be coordinated towards guaranteeing that the last framework or item fits in with customer needs as opposed to endeavoring to shape client desires to fit the prerequisites.
In the event that there is any business level change at customer end, for example, lessening of association quality, securing another organization, association wandering into new business, need to adjust in the first programming may emerge.