Software design model is a elementary approach to fetch a design and development which got a project. First, for design a software, persons are involved analyzer of a particular fields, fields may be any related, who are you open a organization, organization is a software house. For software house, software is design and development by SDLC. SDLC is a software design life cycle, depend SDLC different components. Components are Requirement analyze, Design, Development , Implementation, testing, if a error return to may be first or second or third. These three areas may be mistake possible. After testing, evolution, deploy a software which are design and development. Next area is sale a software which is design. Software which is design is a name by project. Project is passes through a data entry process. Data entry person is saved a record in data entry software. During running a project may be possible issue maintaince, if any open a software, data entry process not insert, save record and print process than need maintaince require. SDLC is a different types, 1. Sequential model 2. Waterfall model 3. Spiral model 4. V process model. Software house is a software design and develop, and test a software project, here optimize and ultimate design and developing a enterprise and small business softwares. In Business views, software house is launch a new copyright softwares, also fetch of different companies for design and develop a project. Project may be possible Database design, Desktop programming (Fornt end and back end programming) and object oriented programming and web design and development with configure a project.