Software Engineering for Internet Applications - Student Community

More documents

Recommendations

Info

36• "I feel like those Jewish people in Germany in 1942." -- TedTurner (on being prevented from buying another TV station)• "If a man speaks in the forest and there is no woman thereto hear him, is he still wrong?" -- Unknown Heroine• "Men are like a fine wine. They all start out like grapes, andit's our job to stomp on them and keep them in the darkwhere they will mature into something you'd want to havedinner with" -- Unknown Heroine• "A woman needs four animals in her life. A mink in thecloset. A jaguar in the garage. A tiger in bed. And an ass topay for it all." -- Anne Slater• "An editor should have a pimp for a brother, so he'd havesomeone to look up to." -- Gene Fowler• "The newest computer can merely compound, at speed, theoldest problem in the relations between human beings, andin the end the communicator will be confronted with the oldproblem, of what to say and how to say it." -- Edward RMurrow• "Egotism is the anesthetic that dulls the pain of stupidity." --Frank Leahy• "Some for renown, on scraps of learning dote, And thinkthey grow immortal as they quote." -- Edward YoungReturn to your RDBMS shell client (e.g., SQL*Plus for Oracle) andselect * from the table to see that your quotation has been insertedinto the table.In your RDBMS shell client, insert a quotation with some hand-codedSQL. To see the form of the SQL INSERT command you should use,examine the code on the page quotation-add. After creating this newtable row, do select * again, and you should now see two rows.Hint: Don't forget that SQL quotes strings using single quote, notdouble quote.Now reload the quotations URL from your Web browser. If you don'tsee your new quotation here, that's because you didn't type "commit;"at SQL*Plus and the Web server is being protected from seeing theunfinished transaction.Exercise 6a: Eliminating the lock table via a sequenceRead about Oracle's sequence database object inhttp://philip.greenspun.com/sql/data-modelingandGlossaryAbstract URLAn abstract URL is one without a file extension, e.g.,http://foobar.com/contact-info rather thanhttp://foobar.com/contact-info.html orhttp://foobar.com/contact-info.aspx. If you only publishabstract URLs you have the freedom to change yourimplementation technology without breaking users'bookmarks and links from other sites.Acceptance TestA test performed by an end user or system owner to verifythat the delivered software functions correctly and meetsrequirements.ACID TestA test proposed by IBM in the 1960s for transactiondatabase management systems: Atomicity, Consistency,Isolation, Durability. An ACID-compliant database such asOracle or SQL Server can guarantee that two updates willbe done together (atomicity), that rules for integrity can beestablished and enforced (consistency), that concurrentusers won't see each others' half-finished work (isolation),that information won't be lost even if a hard disk dies(durability). See the Basics chapter and SQL for Web Nerdsat http://philip.greenspun.com/sql/ for more.Application Serversee "Middleware"AOLserverReleased in early 1995 as "NaviServer", AOLserver remainsone of the most powerful Web server programs on themarket and it is free and open-source. It is a multi-threadedserver that provides a lot of support for connecting torelational database management systems. AOLserver isdocumented at www.aolserver.com.ApacheVies with Microsoft Internet Information Server for the title of"world's most popular Web server". Apache was never verytechnically advanced but it was the best of the free andopen-source Web servers for a time and grew todominance. More: http://philip.greenspun.com/panda/server.APIApplication Programming Interface. An abstraction barrierbetween custom/extension code and a core, usuallycommercial, program. The goal of an API is to let you writeprograms that won't break when you upgrade the underlying313
Sign-OffsTry to schedule comprehensive project reviews every three weeks orso, ideally face-to-face. Notes and decisions from those reviewsshould be signed by both sides (team or team leader and client).Requiring a signature has a way of forcing issues to closure.Assets DevelopedIn building a profitable business or a professional reputation it isimportant to learn from and build on experience. Here are some ofthe things that you can take away from a project:• experience with the problem domain and knowledge of howto solve a similar problem in the future• lessons about dealing with this particular organization• lessons about working with this particular team• general lessons about teamwork and working withorganizations of a particular size• data models, stored procedures, and maybe even somepage scripts for re-use on the next Internet applications thatyou build• a good reference from the Client• magazine or newspaper articles describing the application• a "white paper" describing your team's achievement to atechnical audience• some sort of written summary describing your team'sachievement to a business audienceAt the mid-point of the project write down what you're hoping to takeaway from the experience. At the end, write down what you actuallydid take away.http://philip.greenspun.com/sql/transactions. By creating a sequence,you should be able to edit the quotation-add script to• eliminate the need for lock table• eliminate the transaction machinery (since you're no longertying multiple SQL statements together)• generate a unique key for the new quotation within theINSERT statement itselfExercise 7: Improving the user interface for data entryGo back to the main quotations page and modify it so that categoriesentry is done via a select box of existing categories (you will want touse the "SELECT DISTINCT" SQL command). For new categories,provide an alternative text entry box labeled "new category". Makesure to modify quotation-add so that it recognizes when a newcategory is being defined.Exercise 8: SearchingAdd a small form at the top of /basics/quotations that takes a singlequery word from the user. Build a target for this form that returns allquotes containing the specified word. Your search should be caseinsensitiveand also look through the authors column. Hints: like'%foo%' and SQL's UPPER and LOWER functions.Exercise 9: Personalizing your service with cookiesNow implement per-browser personalization of the quotationdatabase. The overall goal should be• A user can "kill" a quotation and have it never show upagain either from the top-level page or the search page.• Killing a quotation is persistent and survives the quitting andrestarting of a browser.• Quotations killed by one user have no effect on what is seenby other users.• Users can erase their personalizations and see thecomplete quotation database again by clicking on an "erasemy personalization" link on the main page. This link shouldappear only if the user has personalized the quotationdatabase.You'll implement this using cookies. From your technologysupplement you'll need to learn how to read the incoming HTTP31237
Page 1 and 2: SoftwareEngineering forInternetAppl
Page 3 and 4: Signature: ________________________
Page 5 and 6: end-users. We use every opportunity
Page 7 and 8: • availability of magnet content
Page 9 and 10: • we want to see if a student is
Page 11 and 12: you supply English-language queries
Page 13 and 14: What to do during lecturesWe try to
Page 15 and 16: The one-term cram courseWhen teachi
Page 17 and 18: 332• spend a term learning how to
Page 19 and 20: Once we've taught students how to b
Page 21 and 22: has permission to perform each task
Page 23 and 24: UDDIUnixcustomer's credit card. If
Page 25 and 26: thousands of concurrent users. This
Page 27 and 28: OraclePerlnamed XYZ" without the pr
Page 29 and 30: LDAPLinuxbits per color, a vastly s
Page 31 and 32: FilterFirewallFlat-fileGIF318functi
Page 33 and 34: when there is an educational dimens
Page 35: system. The authors of the core pro
Page 39 and 40: scheduling goals that both you and
Page 41 and 42: Client Tenure In Job (new, mid-term
Page 43 and 44: ReferencesEngagement ManagementSQL*
Page 45 and 46: Decision-makers often bring senior
Page 47 and 48: presentation to a panel of outsider
Page 49 and 50: 300always been written by programme
Page 51 and 52: 17.3 Professionalism in the Softwar
Page 53 and 54: Try to make sure that your audience
Page 55 and 56: Chapter 17WriteupIf I am not for my
Page 57 and 58: Suppose that an RDBMS failure were
Page 59 and 60: analysis programs analyzing standar
Page 61 and 62: at 9 hours 11 minutes 59 seconds pa
Page 63 and 64: found" will result in an access log
Page 65 and 66: 15.18 Time and MotionThe team shoul
Page 67 and 68: select 227, 891, 'algorithm', curre
Page 69 and 70: create table km_object_views (objec
Page 71 and 72: • object-create• object-display
Page 73 and 74: The trees chapter of SQL for Web Ne
Page 75 and 76: );274-- ordering within a form, low
Page 77 and 78: and start the high-level document f
Page 79 and 80: Example Ontology 2: FlyingWe want a
Page 81 and 82: systems. What would a knowledge man
Page 83 and 84: spreadsheet". Other users can comme
Page 85 and 86: Chapter 15Metadata (and Automatic C
Page 87 and 88:
{site url}{site description}en-usCo
Page 89 and 90:
drawing on the intermodule API that
Page 91 and 92:
At this point you have something of
Page 93 and 94:
• description• URL for a photo
Page 95 and 96:
Here's a raw SOAP request/response
Page 97 and 98:
Chapter 14Distributed Computing wit
Page 99 and 100:
conduct programmer job interviews h
Page 101 and 102:
Most admin pages can be excluded fr
Page 103 and 104:
content that should distinguish one
Page 105 and 106:
Chapter 13Planning ReduxA lot has c
Page 107 and 108:
the Internet-specific problem of no
Page 109 and 110:
wouldn't see these dirty tricks unl
Page 111 and 112:
12.8 Exercise 4: Big BrotherGeneral
Page 113 and 114:
than one call to contains in the sa
Page 115 and 116:
A third argument against the split
Page 117 and 118:
way 1 1/16One might argue that this
Page 119 and 120:
absquatulate 612bedizen 36, 9211cry
Page 121 and 122:
What if the user typed multiple wor
Page 123 and 124:
Chapter 12S E A R C HRecall from th
Page 125 and 126:
long as it is much easier to remove
Page 127 and 128:
features that are helpful? What fea
Page 129 and 130:
made it in 1938)? Upon reflection,
Page 131 and 132:
environment, we identify users by t
Page 133 and 134:
those updates by no more than 1 min
Page 135 and 136:
Balancer and mod_backhand, a load b
Page 137 and 138:
translation had elapsed--the site w
Page 139 and 140:
It seems reasonable to expect that
Page 141 and 142:
11.1.5 Transport-Layer EncryptionWh
Page 143 and 144:
such as ticket bookings would colla
Page 145 and 146:
give their site a unique look and f
Page 147 and 148:
It isn't challenging to throw hardw
Page 149 and 150:
Chapter 11Scaling GracefullyLet's l
Page 151 and 152:
10.15 Beyond VoiceXML: Conversation
Page 153 and 154:
Consider that if you're authenticat
Page 155 and 156:
In this example, we:194• ask the
Page 157 and 158:
As in any XML document, every openi
Page 159 and 160:
(http://www.voicegenie.com). These
Page 161 and 162:
Chapter 10Voice (VoiceXML)questions
Page 163 and 164:
9.15 MoreStandards information:•
Page 165 and 166:
9.14 The FutureIn most countries th
Page 167 and 168:
9.10 Exercise 7: Build a Pulse Page
Page 169 and 170:
9.6 Keypad HyperlinksLet's look at
Page 171 and 172:
text/xml,application/xml,applicatio
Page 173 and 174:
Protocol (IP) routing, a standard H
show all

Software Engineering for Internet Applications - Student Community

Create successful ePaper yourself

Delete template?

Save as template?