Tugas #7: Java Applet is Considered Security Threats?

Ok, for today Miss Sansan will try to explain about Java Applet. Is it considered as security threats??

Consider the reasons that programs such as Java applets that run on client machines are considered security threats. 

Explain how these programs could breach security.

Java Applet

What is Java Applet? The Java programming language is a thread-based object-oriented language. Try to imagine it as threads as mini-programs which are, in general, executed in parallel with one another. A single Java application, known as an applet, is usually composed of several threads. The threads are interpreted and executed by an overseeing entity known as the Java virtual machine. There are typically times when the execution of one thread depends on variables which another thread is in the middle of using. For this situation, Java has provisions which allow one thread to wait while another is executing.

Java Applet Flow Diagram

Why Java Applet are considered security threats? Java was initially designed with security in mind, so theoretically it is very secure. Java programs downloaded from the web cannot access files - only applets that reside on the host machine can do so, and they are restricted to a user defined set of directories and files, with varying degrees of accesibility. Neither can Java applets make network connections except to the server they came from. When Java programs are loaded, they are run through a bytecode verifier, which checks for any illegal operations. To further reduce the probability of a deliberate or accidental bug causing problems, the Java language does not support pointers. So, unlike in C or C++, you cannot do this:

    char *naughty;

   

    naughty = (char *)rand();

    *naughty = (char)rand();

Common bugs caused by following bad pointers, or deliberate attempts to access memory outside a program's address space become nearly impossible.

Security breach! Attack!!!

How Java Applet can breach security? However, bugs in the implementations of Java viewers such as those in web browsers can breach Java's security. Examples include the ability to write hand-coded bytecode instructions that can bypass Java's security management, and avoid detection by the bytecode verifier, which was possible under Netscape 3.01 and below and Internet Explorer 3.01 and below. It is also possible under Netscape 2.0 - 2.01 to trick the Java interpreter to load and execute an arbitrary file, which could contain a harmful program. But these security problems are very much caused by bugs in the implementation of Java interpreters - again these bugs can be, and frequently are, fixed in later versions of the software.

Well, I hope I explained those things right...

Sincerely,

Miss Sansan

Reference:

http://cs.uccs.edu/~cs301/java/

http://www.doc.ic.ac.uk/~nd/surprise_97/journal/vol4/mmp/secure.htm

http://otani.vet.cornell.edu/spiral_waves/java_applet_flow.html

Tugas #6: Disadvantages of Free or Low-Cost E-Commere Hosting

Discussion of The Day

List two disadvantages of hosting an e-commerce site on a host that is free of available at a very low cost. 

Give examples of e-commerce hosting in Indonesia!

Before we answer these intelligent question, let Miss Sansan explain to the class what e-commerce hosting really is.

  
What is an e-commerce hosting? A hosting account is an account that provides functionalities required for commercial websites, such as SSL support, database access. Sometimes these account also provide facilities to support the progress of business, often such as shopping cart software included in the hosting account’s features set. The hosting account also implies escalated levels of performance and reliability.

Here are a few disadvantages of a free or low-cost e-commerce web hosting........


Ads Free hosts will always force to show advertisements because that’s where their money source. Sure it’s OK for a while. But what happens when often those ads are specific targeted ads that is actually the other competitor business’s ads?? Which means that it could actually resulting in lost in customer…like…forever. No one wants risk like that. 


Reliability “You get what you pay” What if you don’t pay?? WHAT WILL YOU GET??? Get my point? Uptime is very important in ecommerce since time is money and if the business’s website could not be accesses because the host e-commerce provider is offline, the value of lost sale will be great. If the provider host is down for hours, days, weeks, months…wheew opportunity lost. Free e-commerce hosting is not recommended in its reliability. 


The Technology Free or low-cost e-commerce hosting tends to use use-up old technology rather that advance expensive new technology as on a well-paid e-commerce host. This means it can be very less effective and not so reliable because of the poor functionality provided. Which in these days, we really need to rely on fast advance technology because it is why in the first place we choose to built e-commerce! 


Usually Technically Unsupported Since it is free, no payment required, or very low-cost host the biggest disadvantages is in the lack of technical support because the host could not afford it either. Little, or worse - none, technical support is always not a good plan for a long-term period in the business world, especially at some point wrong things are bound to happen – Hello! We’re talking about man-made technology, and mistakes do happen. The risk is to great, with those unexpected technical mistakes happening business could not compete with its other competitors or peers.

Real examples of e-commerce hosting in Indonesia are

Indorackhosting 

http://www.indorackhosting.com/

Rajaklik

http://www.rajaklik.com/

Hope my post brightens your e-commerce days

Regards,

Miss Sansan

Tugas #5: B2B di Indonesia

Salam sejahtera kelas! 

Kembali lagi Miss Sansan hadir disini! Mari kita up-date ilmu dengan membaha mengenai B2B...B2B adalah Busines-To-Business. Ternyata ada beberapa kategori dalam bisnis B2B sendiri. Kategori tersebut akan Miss Sansan bahas PLUS akan Miss Sansan kasih contoh perusahaan serta tampilan website mereka yang aktif tergolong B2B ya...Tentu Miss Sansan akan kasih contoh-contoh aktif yang ada di Indonesia...

Private Stores On Seller’s Site

One seller – many buyer

Few products

Fixed pricing

Contoh: Honda 

http://www.honda-indonesia.com/

http://www.honda-indonesia.com/

Customer Portals

Few sellers – many buyers

Catalog-based

Fixed pricing

Contoh: Penerbit Erlangga

http://www.erlangga.co.id/

http://www.erlangga.co.id/

Independent Industry Marketplace

Many sellers – many buyers

Offer auctions

Dynmic pricing

Contoh: Tokopedia

http://www.tokopedia.com/

http://www.tokopedia.com/

Consortia-sponsored marketplace

Few buyers – many sellers

Buyer control

Fixed pricing

Contoh: LPSE Nasional (Layanan Pengadaan Secara Electronik Nasilonal)

http://www.pengadaannasional-bappenas.go.id/eproc/app

http://www.pengadaannasional-bappenas.go.id/eproc/app

Private company marketplace

Sellers bid on major buyer’ business

Contoh: Petamina e-Procurement

https://eproc.pertamina.com/

https://eproc.pertamina.com/

OKE...pasti sudah ngerti donk yaaaa! Tuh kalau kalian ada yang mau menjalin relasi bisnis silahkan masuk website peruahaan-perusahaan tersebut. Harapan Miss Sansan semoga aktifitas bisnis di Indonesia bisa terus maju..makanya nanti alumsi Kelas Miss Sansan harus meraih sukses semua ya! Tentu untuk kemajuan NKRI kita bersama ini! HOREE

Salam

Miss Sansan

Institusi Sekolah Tinggi Tinggi Sekali

Tugas #4: ZARA vs H&M

HALOOOOOW CLASS!!!! HOW ARE YOU!???

Siapa sih yang nga suka belanja!?? Miss Sansan suka banget belanja, apalagi belanja baju yang mengikuti tren fashion di catwalk Paris HOHOHO Miss Sansan mau mengajari anak-anak untuk berpakaian menarik dan fashionable di kelas...karena Miss Sansan sudah bosan melihat seragam kalian semua! NGA DENK..karena apa yang kita pakai merepresentasikan pribadi kita tentunya. Kalau kalian berpakaian semerawut tentu terkesan JOROWK sedangkan kalau kalian selalu berpakaian rapih dan sopan tentu terlihat bahwa kalian anak BAIK. Saran manis Miss Sansan dalam mengikuti tren adalah dengan window shopping melihat-lihat website brand clothing yang saat ini tentu sedang trend. Miss Sansan mengusulkan ZARA dan H&M karena mereka serupa namun tak sama HOHOHO! Yuks kita perhatikan kesamaan serta perbedaan apa saja di website mereka…

ZARA 
(www.zara.com)

H&M 
(www.hm.com)

Persamaan antara tampilan website ZARA dan H&M adalah:

• ·         Format peletakan yang serupa.
• ·         Pilihan kategori catalogue yang serupa, menyajikan pilihan untuk kategori: woman, man, kids, events, store location, company contact.
• ·         Presentasi website menampilkan gambar produk yang dikenakan oleh model.

Perbedaan antara tampilan website ZARA dan H&M adalah:

Website Page	Keterangan	ZARA	H&M
Basic	Halaman pertama	·         Kesan klasik, profesional dan dewasa. ·         Perpaduan warna hangat, earthy dan calm yaitu warna krem, coklat, hitam. ·         Font tulisan hitam dan berkesan serius.	·         Kesan segar, energik, muda, youth, urband dan menarik. ·         Perpaduan warna terang berkesan penuh energy, yaitu warna kuning, oranye. ·         Font heboh dan berkesan anak muda.
Campaign	Iklan fashion	ü	x
Catalogue	Daftar produk untuk setiap kategori	Woman, TRF, Man, Kids	Ladies, Men, Kids, Home, Sale
People	Foto customer menggunakan produk	ü	x
Trend	Wacana terkini mengenai fashion update	x	ü
Home	Produk furniture	x	ü

Presentasi website menggunakan pilihan warna yang berbeda menunjukkan target audience.

• ZARA lebih ditujukan untuk anak muda yang memiliki sifat serius, mau menonjolkan kesan profesionalisme, lebih terkesan formal dan anak muda yang sudah lebih matang atau dewasa. 
• Se

  dangkan H&M lebih ditujukan untuk anak muda yang lebih energik, suka bereksperimen, fun, seru, asik, heboh, dan terlihat lebih santai kehidupannya.

Salam,

Miss Sansan

Institusi Sekolah Tinggi Tinggi Sekali

Tugas #3: Fee-for-service Model “The CookBook”

Hari gini buka buku resep?? Plis deeeeh….mending ngelirik hape aja toh udah ada yang namanya internet jek. Blackberry bisa inet. iPhone bisa inet. Kayanya semua handphone dan smartphone sekarang wajib bisa connect ke internet secara kita bisa menemukan apa saja, ehem…APA SAJA di internet. Benar? Benar? Benar?

BENAR!

Selain teknologi yang marak berkembang, saat ini issue mengenai kesehatan pun ikut hot dibicarakan. Masyarakat udah mulai sadar bahwa kesehatan itu penting. Faktor yang mempengaruhi kesehatan cuman satu: gaya hidup. Oleh karena itu otak Miss Sansan yang sangat brilian ini menemukan sebuah ide original mengenai fee-for-service model...

“The CookBook”

 Ehem…bagi yang nga tau fee-for-service (FFS). Fee for service model adalah suatu sistem pembayaran dimana pihak pemakai jasa (disebut customer atau clients) MEMBAYAR untuk sesuatu yang mereka PEROLEH sesuai dengan NILAI yang diharapkan si customer terhadap layanan tersebut (sumber: www.financialplanningmagazine.com.au)

“The CookBook” merupakan program untuk smartphone dan PDA yang berfungsi sebagai penyimpan resep hidangan dan penetap menu sehat untuk hidangan makan. Program ini menyediakan aneka menu untuk sarapan, makan siang, makan malam bahkan snack-time sore dikala kita diserang nafsu untuk ngemil. TENANG! Ini bukan program untuk diet! Ini program untuk turut menjaga pola makan dengan sarana pengatur menu otomatis sehingga segala kebutuhan vitamin, protein, karbohidrat tubuh dapat terpenuhi semua. Seperti layaknya menu food-pyramid.

Caranya adalah download “The CookBook” pada smartphone atau PDA pengguna yang dikenalan charge. Pembayaran melalui credit card. Jumlah yang dikenakan tergantung dengan paket pilihan pengguna, tentu semakin banyak servis yang di pilih maka semakin besar juga harganya. Kemudian service charge akan dikenakan setiap bulan (seperti pembayaran produk langganan)

Servis yang disediakan dalam program “The CookBook” adalah:

• Pengatur menu otomatis untuk sarapan, makan siang, makan malam, dan snack-time.
• Menyajikan resep dan cara pembuatan menu makanan dan minuman.
• Menyajikan resep dan cara minuman kesehatan,yaitu campuran jus buah dan jamu tradisional.
• Menyajikan tips untuk memasak secara efisien.
• Menyajikan tips untuk dekorasi hidangan.

Sarana kesehatan lain yang disediakan (dikenakan extra charge):

• Menghitung jumlah kalori pada makanan dan minuman.
• Mendeteksi sinyal dehidrasi dari tubuh sehingga alarm berbunyi tanda tubuh harus minum.
• Pengukur suhu tubuh.
• Menghitung detak jantung.

Sarana lain yang disediakan (dikenakan extra charge):

• Menampilkan video singkat cara pembuatan makanan dan minuman.
• Mengingatkan bahan makan apa saja yang dibutuhkan untuk menu hari berikutnya.
• Mengingatkan jika ada kandungan yang menyebabkan reaksi alergi pada pengguna.
• ChatRoom sehingga sharing tips memasak sesama pengguna program “The CookBook”

Secara konsep tampilan pada smartphone atau PDA adalah sebagai beriku...:

Salam sehat,

Miss Sansan
Institusi Sekolah Tinggi Tinggi Sekali