lanjutan dari siklus pengembangan sistem

Sistem informasi mendukung kegiatan tiap harinya, jangka pendek dan jangka panjang dari users. Beberapa contoh dari users adalah: karyawan toko, perwakilan penjualan, akuntan, supervisors, manajer, eksekutif dan konsumen.
Setelah beberapa waktu, jenis dan macam informasi yang dibutuhkan oleh users berubah. Apabila kebutuhan informasi berubah, sistem informasi harus memenuhi kebutuhan baru. Dalam beberapa kasus, pengembang sistem akan memodifikasi sistem informasi yang terkini. Di kasus lain, mereka membangun sistem informasi yang keseluruhannya baru.

Sebagai user dari komputer di bisnis, maka anda suatu ketika akan berpartisipasi dalam memodifikasi sistem yang ada atau membangun sistem baru. Oleh karena itu perlu untuk memahami proses pengembangan sistem

Tema A:siklus pengembangan sisitem

Siklus hidup pengembangan sistem adalah pendekatan melalui beberapa tahap untuk menganalisis dan merancang sistem yang dimana sistem tersebut telah dikembangkan dengan sangat baikmelalui penggunaan siklus kegiatan penganalisis dan pemakai secara spesifik, siklus itu antara lain :

• Mengidentifikasikan masalah, peluang dan tujuan.
• Menentukan sarat-sarat informasi.
• Menganalisis kebutuhan sistem.
• Merancang sistem yang direkomendasikan.
• Mengembangkan dan medokumentasikan perangkat lunak.
• Menguji dan mempertahankan sistem.
• Mengimplementasikan dan mengevaluasikan sistem

EXERSICE W3

Topic: large cars
controlling idea : the reason
topic sentence : many the reasons people use a big car than a small car used to carry passengers for a lot of

Outline supporting ideas :
*I want to travel out of town with a large car because it was the reason I wrote so comfortable in the car
*especially in the big car that could accommodate more passengers and 40 people in his.
*many facilities in the car were among his great television, bathroom, air-conditioned.
*so many people that want to travel far to use a large car because there are many benefits of his

construct into paragrafh!
many the reasons people use a big car than a small car used to carry passengers for a lot of, especially I want to travel out of town with a large car because it was the reason I wrote so comfortable in the car, especially in the big car that could accommodate more passengers and 40 people in his and many facilities in the car were among his great television, bathroom, air-conditioned and so many people that want to travel far to use a large car because there are many benefits of his

kompresi citra

Kompresi citra adalah aplikasi data yang dilakukan terhadap citra digital dengan tujuan untuk mengurangi redudansi dari data-data yang terdapat dalam citra sehingga dapat disimpan atau ditransmisikan secara efisien.









PENGUKURAN ERROR KOMPRESI CITRA





PSNR = 20*log10(255/sqrt(MSE))

Ket : nilai MSE yang rendah akan lebih baik, sedangkan
nilai PSNR yang tinggi akan lebih baik


ALGORITMA KOMPRESI/DEKOMPRESI CITRA



1. Menentukan bitrate dan toleransi distorsi image dari input user
2. Pembagian data image ke dalam bagian-bagian tertentu sesuai dengan tingkat kepentingan yang ada (classifying). Menggunakan teknik DWT
3. Pembagia bit-bit didalam masing-masing bagian yang ada (bit allocation)
4. Lakukan kuantisasi(Quantization) : a. Kuantisasi sklar
b. Kuntitasi vektor
5. Lakukan pengkodingan





Beberapa Metode Kompresi Citra



Teknik Kompresi GIF

a. Kompresi GIF menggunakan teknik LZW: gambar GIF yang berpola horizontal dan memiliki perubahan warna yang sedikit, serta tidak bernoise akan menghasilkan hasil kompresan yang baik.
b. LZW kurang baik digunakan dalam bilevel (hitam-putih) dan true color
Format file GIF:
a. GIF87a: mendukung interlacing dan mampu manyimpan beberapa image dalam 1 file, ditemukan tahun 1987 dan menjadi standar.
b. GIF89a: kelanjutan dari 87a dan ditambahkan dengan dukungan transparency, mendukung text, dan animasi.
d. Animated GIF: tidak ada standar bagaimana harus ditampilkan sehingga umumnya image viewer hanya akan menampilkan image pertama dari file GIF. Animated GIF memiliki informasi berapa kali harus diloop.
e. Tidak semua bagian dalam animated GIF ditampilkan kembali, hanya bagian yang berubah saja yang ditampilkan kembali.

advantages and disadvantages of instant noodles

advantages of instant noodles among others :
* easy
* fast food
* more efficient
* greater acceptance
* affordable
* instant
* no hassle

disadvantages of instant noodles among others:
* price a little expensive
* unwell
* not be sufficient nutrition

About myself

I was a humankind that had logic and the feeling, I most did not like in lie. I most honesty that was liked in various matters, Because of that I wanted to become myself. In my association must adjust moreover the person that I just knew, but I also saw first his person was rich gimana, because I not want to until wrong the association during ini. the activity at this time I went to class then and at this time I already smester 5, and I want to fast passed and immediately searched pekerjaan. I not want to disappointing to my two parents that already the hard work to finance me until I went to class. therefore I wanted to become the person of the success and I want to make happy to my two parents the old age pass nya.Hopefully the LORD could ngasih Many Happy Returns was the same my parents.

More was glad being kept being the same parents what itself boarded

According to me if remaining personally at everything boart, we must be independent moreover we far from the family therefore we must also adapt in the environment surrounding area. continued we must be good at socialised. if to board we must prepare before that is money for our requirement in the boarding house in part: eat, loundry, our equipment in kost. but that all of them we could more our experience lived in the boarding house.

Whereas I was kept being the same parents, I must obey all of parents's regulations therefore we ga could be free that we wanted. moreover if coming home from university must right on time until the house. Yes that now that was experienced by me.