relation: https://digilib.uin-suka.ac.id/id/eprint/14659/ title: EFEKTIFITAS SISTEM TEMU KEMBALI INFORMASI PADA OPAC PERPUSTAKAAN FAKULTAS ILMU SOSIAL UNIVERSITAS NEGERI YOGYAKARTA (STUDI PRECISION) creator: DONY PRISMA WICAKSONO , NIM. 09140064 subject: Ilmu Perpustakaan description: This study aimed to determine the effectiveness of Information Retrieval System at the OPAC (Online Public Access Catalogue) in Library of Social Faculty of Yogyakarta State University by base of approach the subject and author searches in the advanced search facility. This study was an experimental study using a quantitative research methods with the subject is the OPAC and the object is to measure the effectiveness of information retrieval systems. Instrument in this study using a checklist Instrument that contained query list. Its population was based from collection tittles number in the database by using sampling with purposive sampling technique which based on the curriculum and syllabus of each study program. This study was conducted to data capture techniques by using observation, documentation, interviews and tests. In this study, the formula which used to assess the effectiveness of information retrieval systems was the precision level formula. The result of research indicates that the average of precision level, with subject approach, obtained values 0,82 and author approach obtained values 0,91. Based on these results, it can be said that a information retrieval system to approach the subject and author at the OPAC in Library of Social Faculty of Yogyakarta State University, has high precision level, or in other words has been effective, based on precision level in the interval range (0,67=1,00). date: 2014-10-21 type: Thesis type: NonPeerReviewed format: text language: en identifier: https://digilib.uin-suka.ac.id/id/eprint/14659/2/09140064_bab-i_iv-atau-v_daftar-pustaka.pdf format: text language: en identifier: https://digilib.uin-suka.ac.id/id/eprint/14659/1/09140064_bab-ii_sampai_sebelum-bab-terakhir.pdf identifier: DONY PRISMA WICAKSONO , NIM. 09140064 (2014) EFEKTIFITAS SISTEM TEMU KEMBALI INFORMASI PADA OPAC PERPUSTAKAAN FAKULTAS ILMU SOSIAL UNIVERSITAS NEGERI YOGYAKARTA (STUDI PRECISION). Skripsi thesis, UNIVERSITAS ISLAM NEGERI SUNAN KALIJAGA.