Neighborhood association is an organizing structure in which the Indonesian government recognizes and fosters to assist administrative tasks in building communities at the village and sub-district levels. But on RT. 003 RW. 001 Ciliwung Kemirimuka Depok City there are various problems in the management of population data and its services which consist of traditional filings into a general ledger used as physical archives so that they are vulnerable to damage and often loss of population data and cause inaccuracies in the number of population data who move, experiencing death, and residents who came. The purpose of this study is to build a population data administration system into an integrated application whose data can be stored into a database to help the service process that can be managed easily. The method used by the Research and Development (R&D) method to create products is in the form of an administrative application for RT.003 RW.001 Ciliwung Kemirimuka Depok City population data collection. The results of this study can be used for population data collection applications by RT.003 RW.001 officers as a user so it does not require more time and data search can be done easily.

The information system development step often used is the System Development Life Cycle (SDLC). One of the SDLC stages is system design. It uses the Data Flow Diagram version of the Structured System Analysis and Design Methodology (SSADM) because it is a traditional model closely related to the waterfall model. This study aims to prove the role of the data store in the DFD and become an entity in the Entity-Relationship Diagram (ERD) to see the relationship between each entity. Benefit the associative method tests the connection of the data store on the DFD, which is realized to the ERD. The results obtained are the role of the data store in the DFD to become an entity on the ERD with a proven query table to facilitate data retrieval.
Keywords: Entity Relationship Diagram, Data Flow Diagram, SDLC, SSADM