Analisa Perbandingan Tools Ekstaktor Whatsapp Database Crypt12 Menggunakan Metoda Logical Extraction

Dengan lebih dari 1000 juta pengguna aktif berdasarkan survey 2017 perkembangan ini semakin meningkat setiap tahunnya. Perlu diketahui bahwa WhatsApp mempunyai suatu tabel database yang tersimpan secara rasahsia didalam sistem sistem Android yang selalu update secara realtime. Database ini selau dicadangkan secara otomatis melalui fitur autobackup yang tersimpan berbeda dengan database utama. Database hasil backup ini mempunyai format file .crypt12. File crypt12 ini tidak dapat diakses secara sembarang karena telah dienkripsi oleh apliksi ini.Beberapa penelitian telah banyak membahas tentang WhatsApp forensics diperangkat android dengan menggunakan beberapa medode salah satunya adalah metode “logical Extraction” .Dalam melakukan uji coba forensics muncul permasalahan ketika akan dilakukan uji forensics pengguna aplikasi telah menghapus percakapan yang telah dilakukan ini bertujuan untuk menghilangkan jajak dari pengguna WhatsApp. Didalam kasus ini sebenarnya kita dapat melihat percakapan yang telah dihapus dengan melihat data crypt12 dari WhatsApp dengan cara mendeskripsikan data base tersebut. Ada beberapa tools untuk mendeskripsikan file crypt12. Pada penelitian ini akan membandingkan tools untuk mendeskripsikan file data base WhatsApp. Hasil penelitian menghasilkan dalam menganalisa uji forensics tidak lah cukup hanya mengandalkan tools yang dibandingkan akan tetapi harus melihat database hasil deskripsi. File crypt12 (database backup) dan file asli dalam system pada dasarnya mempunyai isi yang sama, akan tetapi terjadi perbadaan dikarenakan dalam proses backup tidak lah update karena WhatsApp hanya akan membackup setian 24 jam sekali.

Areza Town Center Inventory System of Dealership

The research study entitled “Areza Town Center Inventory System of Dealership” was an information technology (IT) system developed for the management and staff of Areza Town Center located in Pagsanjan, Laguna, Philippines. The main purpose of the study was to develop an IT system that can monitor and record the transaction and the information of customers and the accurate computation of billings, services and annual income of the company. Specifically, it aimed (1) To develop a system that will meet the requirement of the Areza Town Center; (2) To create and analyze the use of the IT system depending on the process of the transaction and functions of the Areza Town Center; (3) To test and evaluate the system in terms of system usability, design, user-friendliness, error handling and system security; and (4) To implement the system among the staff and management of the Areza. The Areza Town Center Dealership Inventory System is developed for the purpose of inventory of information and facilitates the management of Areza Town Center. The system has a restriction for any unauthorized use, decoding, and manipulation of information on the system. It can handle a large amount of information and the system can assure the security of data records. The system runs using Pentium 4 and a higher processor, at least 50 MB for the program and 1 GB for the database to store records of transactions, sales, stocks, and income. The system runs with the use of Microsoft XP and Windows 7 as an operating system. The capstone project is a local area network (LAN) based system and it does not need an internet connection to operate. The inventory system was presented to the client for verification of the details to identify errors and clarify the process of the company. To determine the overall performance of the developed system, the researchers used a questionnaire-checklist, which includes indicators such as system design, usability, user-friendliness and error – handling. The questionnaire-checklist was validated and was distributed to the selected respondents. A total of thirty (30) respondents were purposely chosen to assess the performance of the system using the questionnaire-checklist. All the data were gathered, tabulated and the overall performance of the system was determined through statistical tools such as weighted mean and standard deviation as well as the analysis of variance to determine the overall performance of the system. The researchers used Microsoft Excel for the computation of the statistical results. In light of the findings obtained, it was concluded that the Areza Town Center Inventory System of Dealership was highly usable, has a good design, and has excellent error-handling, highly user-friendly and highly secured. Based on the conclusion drawn, the following were recommended: (1) the Areza Town Center Dealership Inventory System is recommended to be used by the Areza Town Center; (2) the researchers may enhance the database of the system by adding database backup and more additional features; and (3) future researchers may use this study as their reference when they conduct similar study.