Judul: Evaluasi Kualitas Perangkat Lunak Berorientasi Objek
Abstrak: Pengembangan perangkat lunak berorientasi objek membutuhkan pendekatan yang berbeda dengan pengembangan perangkat lunak terstruktur. Perbedaan tersebut terdapat pada tahap desain, implementasi, dan evaluasi kualitas perangkat lunak tersebut. Dengan demikian, dibutuhkan metrics yang berbeda dengan traditional metrics untuk melakukan evaluasi kualitas perangkat lunak tersebut. Chidamber & Kemerer (1994) mengajukan enam buah object oriented metrics. Keenam metrics tersebut memiliki sudut pandang yang terkait dengan faktor-faktor kualitas perangkat lunak. Dengan demikian, metrics tersebut dapat digunakan untuk melakukan evaluasi kualitas perangkat lunak berorientasi objek dari beberapa faktor kualitas yang terkait.
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Judul: Tinjauan preferensi pemakai komputer pribadi terhadap perangkat lunak dengan pendekatan analisis konjoin
Abstrak: Dalam usaha menjawab kebutuhan pemakai komputer pribadi akan perangkat lunak yang sesuai dengan keinginannya, diperlukan informasi tentang faktor-faktor yang mempengaruhi pemakai komputer pribadi dalam memilih suatu perangkat lunak. Salah satu metode analisis yang dapat menghasilkan informasi seperti itu adalah metode pengukuran konjoin. Penelitian ini dimaksudkan untuk menduga preferensi dua golongan pemakai komputer pribadi. Golongan itu adalah anggota klub komputer Batutulis, dan mahasiswa Statistika IPB tingkat IV tahun ajaran 1990-1991. Selain daripada itu, dalam penelitian ini disajikan pula 3 analisis tambahan yang biasanya menyertai analisis konjoin. Tiga analisis itu adalah pemeriksaan keabsahan internal, keterandalan responden, dan perbandingan utiliti aktual dengan utiliti responden acak. Dari faktor-faktor dan taraf-taraf yang telah ditentukan sebelumnya, untuk kelompok anggota klub diperoleh urutan faktor yang mempengaruhi sebagai berikut, faktor susunan file, kemudian faktor keberadaan help dan keberadaan fasilitas pelatihan, faktor user interface dan pelayanan purna jual, dan terakhir adalah faktor orientasi kerja perangkat lunak.
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Judul: Phylogeography and Species Limits in the Papuan White Snake (Micropechis ikaheka) (Reptilia: Serpentes: Elapidae)
Abstrak: Papua white snake, Micropechis ikaheka, has been distingushed into two subspecies M.i. ikaheka and M.i. fasciatus. However, due to lack of data on their morphology, distribution and ecology, both subspecies often ignored in scintific discussions and refers only byas , Micropechis ikaheka. This study was designed to document the differences between M.i. ikaheka and M.i fasciatus by using scales characteristics and reproductive organ or hemipenes. The study also examine, zoogeography, habitat, diet and cannibalism of both subspecies to better understanding the the ecology of one of the most venomous snakes in the world. This study consists of three topics with method and also different in the size samples, respectively. The first study is the histology and microtopography of the skin were studied using paraffin method and Scanning Electron Microscope (SEM). The second is the hemipenis were examined by following Myers and Cadle (2003), and Zaher and Prudente (2003). The third is the abdominal surgery was carried out to document diet type and the investigate phenomenon of cannibalism in the snake. Specimens for this study came from the collection from Museum Zoologicum Bogoriense (MZB) and Universitas Negeri Papua’s Laboratory (LZU). The research result also indicated that the markers of skin and hemipenis described the same structure and microornamentation in all M. ikaheka groups being compared. Based specimens examined morphological descriptions do not s support the further differentiation in Micropechis. In short, two markers that used in this study could not sufficiently indicate the differences in the level of species and subspecies of M. ikaheka. The study, however, were able to delineate zoogeography and skin color patterns, which fall into four groups: M. i. ikaheka; M. i. fasciatus. M. i. ssp. “intermediate”; and M. i. ssp “black”. This study also revealed that color variations did not overlap in their geographic distribution. It is therefore, it suggested that environmental factors may contribute to the skin color variations. It also assumed that habitat discontinuous and biogeography factors may also cause the loss of the connection between the original populations (vicarians) or follow colonization events (dispersal). The examined of 22 stomach contents of M. ikaheka shows this species is carnivorous, and prey on vertebrates such as amphibians, fish, reptiles, and Mammals. These snakes are opportunistic predators since they prey on all that can be captured, but mainly reptiles (61.5%), followed by mammals and fish (both 15.4%), and amphibians (7.7%). Although categorized as terrestrial animal, the diet study showed that M. ikaheka snakes often go into the water to hunt for fish (the sample from Yapen island), including eel (the sample from Aru island). Based on prey items indentified, there is evidence that M. ikaheka is cannibal. At this time, there still no record on reason for cannibalism, but it is assumed that cannibalism was due to competition between populations and means to control population.
Keyword: geographic variation, white snake, papua