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Developing Decision Support System Application for Hotel X Using Analytic Hierarchy Process MethodIrma Wijaya - 26405101
Abstract
Hotel X still using manual and uncomputerized system for choosing supplier, because of that Hotel X needs application that can help decision maker for doing their job. This application using AHP method because of complex in criteria
This AHP application is designed to be used flexibly. Flexibility in add, edit and delete criteria and sub-criteria in accordance with the present circumstances. This application was developed using SQL Server 2005 and Visual Basic 6.0
Based on questionnaire results, we concluded that this application could answer all the needs of Hotel X. This application can support decision making process at the Hotel X in selecting suppliers.
General Background• Life needs decision making• Every decisions are crucial• Decision making was influenced by several
factors
Business Background• Company’s decision establish company
performance and profit.• Supplier has important role in business
process
Benefit of Suitable Decisions• Objectivity and Consistent
Judgement• Consist of data combined with
expert experiences and organization needs
• Dependences and Feedback of tangible and intangible factors
Decision Making Processes
Searching for conditions that call for decision
Inventing, developing, and analyzing posible course of action
Selecting a course of action from those available
Implementing the selection action
Business Flow in Hotel X
ya
Pembelian
Sup
plie
rS
upp
lier
Gen
eral
M
anag
er
Gen
eral
M
anag
er
Ass
ista
nt
Acc
ount
ing
Man
age
r
Ass
ista
nt
Acc
ount
ing
Man
age
r
Acc
ount
ing
Man
age
r
Acc
ount
ing
Man
age
rP
urch
asi
ngP
urch
asi
ng
StartMengumpulkan PR(Purchase
Requisition) dari tiap-tiap bagian
Menerima PR dari bagian Purchasing
Cek apakah stok barang kosong?
Menerima PR dan laporan mengenai
stok barang
Membuat persetujuan
pembelian barang
Apakah kebutuhan mendesak?
Menerima PR, laporan dan persetujuan
pembelian barang
Melakukan prosedur
pengadaan barang (membuat quotation)
GM setuju?
ya
Menerima quotation dari
bagian purchasing
Membuat dokumen
penawaran dengan lengkap
Menerima dokumen
penawaran dari suplier
Melakukan seleksi dan evaluasi
penawaran projek
Supplier sudah dipilih?
Membuat PO, kepada supplier
yang terpilih. Buat jadwal pengiriman,
dan syarat-syarat yg harus dipenuhi
supplier
Menerima PO dan melakukan proses
pengadaan
Mengirim barang sesuai dengan
pesanan
Tidak
End
Tidak
tidak
Stok
POSupplier
Ya
Terima persetujuan
pengadaan barang dari GM
Ya
Tidak
See at Page No. 25
The procedure for using the AHP• Model the problem as a hierarchy containing the decision goal, the
alternatives for reaching it, and the criteria for evaluating the alternatives.
• Establish priorities among the elements of the hierarchy by making a series of judgments based on pairwise comparisons of the elements. For example, when comparing potential real-estate purchases, the investors might say they prefer location over price and price over timing.
• Synthesize these judgments to yield a set of overall priorities for the hierarchy. This would combine the investors' judgments about location, price and timing for properties A, B, C, and D into overall priorities for each property.
• Check the consistency of the judgments.
• Come to a final decision based on the results of this process
Hotel X• Goal : To find suitable supplier based on their
criteria and needs• Criteria:
– Quality– Cost– Delivery– Responsiveness
Design New SystemStart
Data sudah lengkap?
Belum
Sudah
Data relasi sudah lengkap?
Belum
Hitung AHP supplier
Hitung AHP sub kriteria
Hitung AHP kriteria
Hitung AHP akhir
Report hasil akhir
End
Apakah konsisten?
Ya
Tidak
Input data
barang
Input data
supplier
Input kriteria
Input sub
kriteria
Input sub kriteria?
Ya
Tidak
Input relasi antar
kriteria
Input relasi
antar sub kriteria
Input relasi antar
supplier
Ada sub kriteria?
Ya
Tidak
Ada sub kriteria?
Ya
Tidak
See at Page No. 28
Main Use Case Diagram
Login
Manage Data Supplier
<<include>>
Manage Data Barang
<<include>>
Report
<<include>>
Input user
Manage Project
Fungsionalitas AHP
User
<<include>>
<<include>>
See at Page No. 30
Use Case Diagram - Manage Data Barang
Login
Input Data Barang<<include>>
Edit Data Barang
<<include>>
Delete Data Barang
<<include>>
User
See at Page No. 30
Use Case Diagram - Manage Data Supplier
Login
Input Data Supplier
<<include>>
Edit Data Supplier
<<include>>
Delete Data Supplier
<<include>>User
See at Page No. 31
Use Case Diagram – AHP Functionality
Login
Input Kriteria dan Sub Kriteria
<<include>>
Input Relasi Antar Supplier<<extend>>
Input Relasi Antar Kriteria dan Sub Kriteria
<<include>>
Hitung AHP Supplier
Hitung AHP Kriteria dan Sub Kriteria
User
Hitung AHP Final
<<include>>
<<include>>
<<include>>
See at Page No. 31
Entity Relationship Diagram
Relation_242
Data Supplier Nilai Supplier
Relation_141
Relation_140
Relation_139
Relation_133
Relation_128
Relation_127
Nilai Supplier Barang
Nilai Supplier Kriteria
Data Kriteria RelasiData Pertanyaan Relasi
Data Kriteria Relasi Supplier
Data Barang Relasi Supplier
Data Relasi Supplier Sub
Data Relasi Supplier
Nilai Subkriteria Barang
Data Barang Proyek
Data Proyek
Data Nilai AkhirData Nilai Akhir Barang
Data Pertanyaan Barang
Data PertanyaanData Hubungan
Data Alasan
Data Barang Data Supplier
Data Kriteria
TLogin
TL_KodeTL_NamaTL_Passw ord
TSubKriteria
TSK_KodeTSK_NamaTSK_Nilai
TSupplier
TS_KodeTS_NamaTS_A lamatTS_NoTeleponTS_CPTS_Status
TKriteria
TK_KodeTK_NamaTK_Nilai
TRCI
TRCI_KodeTRCI_Nilai
TGudang
TG_KodeTG_JumlahTG_Harga
THubungan
TH_KodeTH_Nilai
TPertanyaan
TP_KodeTP_Pertanyaan
TAlasan
TA_KodeTA_Jaw aban
TNilaiAkhir
TNA _KodeTNA _Nilai
TBarang
TB_KodeTB_NamaTB_DetilTB_TipeTB_Status
TDetilProyek
TDP_KodeTDP_Jumlah
TProyek
TPro_KodeTPro_Nama
TRelasiSupllierSub
TRSS_KodeTRSS_Nilai
TNilaiSupplier
TNS_KodeTNS_Nilai
TRelasiSub
TR_KodeTR_Nilai
TRelasiSupplier
TRS_KodeTRS_Nilai
TNilaiAkhirSub
TNA S_KodeTNA S_Nilai
TNilaiSupplierSub
TNSS_KodeTNSS_Nilai
TPreferensi
TPR_KodeTPR_NilaiTPR_Nama
See at Page No. 32
Design Menu of Aplication
Main Form
Conclusions• It meets user needs.
• This application has been able to produce proposals which suppliers should be selected by the purchasing team of the Hotel X
• Based on the results of questionnaires that have been collected, 80% of respondents consider this application is in conformity with the needs of Hotel X is good, and 60% of respondents considered that the application has a very good degree of accuracy.
Suggestions• It could be extended for others
purposes, like choosing employee, buying and selling.
• Adding dashboard.
References•Bagyono (2005). Pariwisata dan Perhotelan. Bandung: Alfabeta•Blaha, Michael & Rumbaugh, James (2005). Object Oriented Modeling and Design with UML (2nd Edition). New Jersey: Pearron Education Inc.•Efraim Turban, Jay E. Aronson, Ting Peng Liang. (2008). Decision Support Systems and Intelligent Systems Jilid 1 Ed. 7. Yogyakarta: Penerbit Andi.•Efraim Turban, (2008). Decision Support Systems and Intelligent Systems Jilid 2 Ed. 7. Yogyakarta: Penerbit Andi.•Firdaus (2007). SQL Server dengan Visual Basic 6.0 untuk Profesional. Maxikom.•Kadir, Abdul (1999). Basis data. Yogyakarta: Andi•Prastowo, Dwi, Darminto, Suryo Aji (2000). Analisis Laporan Keuangan Hotel. Yogyakarta: Andi.•Ramalho, Jose A. (2001). Microsoft SQL Server 2000. New York: McGraw-Hill.•Saaty, Thomas L. Dan Luis G. Vargas (1985). Decision Making Using the AHP. Pittsburgh: RWS Publications.•Suryadi, Kadarsah, Ali Ramdani (2000). Sistem Pendukung Keputusan. Bandung: PT Remaja Rosdakarya•Whitten, J., Bentley, R. & Dittman, K. (2004). System Analysis and Design Method(5th edition). New York: McGraw-Hill
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