In the face of advancement in technology like smart card and biometrics,rnCitizen Identification System is getting the attention of many countries of thernworld. Most of the developed countries are in the process of implementingrnrobust ID card system.rnHowever, Ethiopia uses the manual ID cards issued at kebele level for citizenrnidentification. On the other hand, many government and private organizationsrnare automating their day-to-day operations. Among them lie organizationsrnthat keep citizen information for one or other purpose. Exchange andrnIntegration of citizen information among these organizations is very important.rnHowever, there is no much effort done in this respect. It is therefore importantrnto anticipate and prepare a mean for integration before more automation isrndone and the data repository in many organizations grew. In this project, wernstudied a system that keeps citizensâ€™ identification information and generatesrnunique national ID number, which can assist in the integration of citizenrninformation.rnWe assessed the experience of other countries in using citizen identificationrnsystems and the efforts in Ethiopia in that direction. We also analyzed thernrequirements for citizen identification system and proposed a workingrnarchitecture for Ethiopian condition. The implementation issues like thernprivacy of individuals and the functionality creep of ID system is alsornassessed. Moreover, the security requirement of the proposed system isrnspecified and a scheme for generating unique national ID number is proposedrnfrom based on the experience of other countries.rnFinally, we developed EthioCIS prototype for the Citizen Identification Systemrnof Ethiopia using software development tools i.e Jbuilder 5.0, Oracle 9irnDBMS, Dreamwaver 2004 Mx, and also OpenSSL for addressing the securityrnissue.