managing sites in sharepoint online

... 2012-3521: MANAGING TIME IN ONLINE COURSES: STUDENT PER-CEPTIONS Prof Susan L Miertschin, University of Houston (CoT) Susan L Miertschin is an Associate Professor teaching in the Computer Information ... multiple courses are enrolling in on-line courses in increasing numbers In fact, research at the University of Houston indicates that although students enroll in on-line courses for a myriad of ... Results In order to obtain a clearer understanding of how certain instructional components contribute to students’ perceptions of quality in on-line course offerings, 148 students were surveyed in

Ngày tải lên: 10/07/2023, 14:09

... your skills in building a computerized schedule Similarly, in the business world, managing risk occurs within an organizationalcontext If you ignore this context, your attempts at managing risk ... that links risk-taking with direct pay-offs [p 21] Thus, risk management and forecasting are intertwined We willlook at forecasting and estimation in Chapter Twelve RISK VERSUS UNCERTAINTY In management ... logs, brainstorming sessions, be-havioral models, diagramming techniques, flowcharting, and theholding of productive meetings em-Chapter Five looks at qualitative approaches to determining theimpacts

Ngày tải lên: 10/12/2013, 14:15

... wp_epis_end_dt P1[intersects] P2 This not an Allen relationship It is the node in our taxonomy of Allen relationships which includes the [starts], [starts
1], [finishes], [finishes
1], [during], [during
1], ... The idea behind it is that it includes every relationship in which P1and P2 have at least one clock tick in common and in which P1is the earlier time period The limiting case is that in which P1ends ... difference is in the notation In the following discussions, we will use the simpler notation, T1, for the point in time In this section, we consider periods of time that are longer than a single clock

Ngày tải lên: 21/01/2014, 08:20

... against the index, followed by a single direct read to the table itself So in determining the sequence of columns in an index, a good idea is to put the most frequently used lookup columns in the ... want to minimize any type of scan Another important consideration in determining the optimal sequence of columns in an index is that optimizers may decide Trang 9not to use a column in an index ... expo-nentially growing number of dependents, and of the often ineffi-cient SQL used to access and maintain data in conventional databases, it is likely that using the AVF to manage temporal data in an Asserted

Ngày tải lên: 26/01/2014, 08:20

... lower cardinality columns Clustering would continue based on 3 Low cardinality means that there are fewer distinct values for the field in the table which results in more rows having a single value. ... qualified as criteria, filtering on everything it got during the index scan rather than during the more expensive table scan If the circa flag is not included in the index, and the DBMS allows ... then add the episode begin date Instead of creating a separate index for TRI parent-side tables, we could try to minimize the number of indexes by re-using the primary key index to: (i) Support

Ngày tải lên: 26/01/2014, 08:20

... time in either of the two bi-temporal dimensions are delimited by their starting point in time and ending point in time These points in time may be timestamps, dates,... books, introduced ... within the AVF. In addition, the benefits of the internalization of pipeline datasets will also be made immediately available, this being one of the principal areas in which Asserted Versioning ... datasets internalized within the production tables they are directed to or derived from, Asserted Versioning eliminates the cost of managing them as distinct physical data objects. Asserted Versioning

Ngày tải lên: 26/01/2014, 08:20

... referential integrity constraints as asserted version tables are maintained; (iii) translates temporal insert, update and delete transactions into the physical transactions which maintain an asserted ... a time period and a point in time, or two points in time, as first defined in James F Allen’s 1983 article Maintaining Knowledge about Temporal Intervals Semantics: the set of all possible positional ... periods, a time period and a point in time, or two points in time, defined along a common timeline Comments: ® The Allen relationships are mutually exclusive and jointly exhaustive ® Good discussions

Ngày tải lên: 26/01/2014, 08:20

... to internal business users or exported to outside users, or are augmented as they move along an “outflow data pipeline” leading to a final state in which they are delivered to internal business ... begin date would be hundreds or even thousands of years in the future In business databases, there is little risk of such assertions falling into currency by the mere passage of time ® The intent, ... transformed as they are moved along an “inflow data pipeline” leading into the production database Components: dataset, production table instance Semantics: a thing of a particular type Comments:

Ngày tải lên: 26/01/2014, 08:20

... practices)Description: as described in Chapter 4, best practices in managing temporal dataconcern themselves with versioning, i.e with keeping track of the changes toobjects of interest by recording the states which ... published in March 1994 in the ACM SIGMOD Record A final version was published the following • See also: instance • In a database, tables represent types of things, and rows represent instances ... Description: any method of managing state temporal data in a single temporal Mechanics: a database that contains at least one table whose rows include one or more columns representing an assertion and/or

Ngày tải lên: 26/01/2014, 08:20

... Cooperation in Business: Managing Dilemmas in the 21st Century, we take the first steps in exploring this emerging field of knowledge and practice, lookingfor ways to think about two key business questions ... of people in gen-eral A lens is something you see through; it’s a toolfor understanding, not a tool for engineering Withthis in mind, we present the map as a way to reex-amine basic business situations ... described by Garrett Hardin in 1968 Hardin argued that a grazing com-mons would inevitably be overgrazed or cordoned off as farmers pursued their own individual self-interest by allowing their cows to

Ngày tải lên: 18/02/2014, 00:20

... 1Managing Uncertainty in Semantic TaggingSilvie Cinkov´a and Martin Holub and Vincent Kr´ıˇz Charles University in Prague, Faculty of Mathematics and Physics Institute of Formal and Applied Linguistics ... semantic tagging is in many respects sim-ilar to morphological tagging and syntactic anal-ysis: human annotators are trained to sort cer-tain elements occurring in a running text ac-cording to a ... for develop-ing ontological and lexical resources in harmony. In 9th International Conference on Intelligent Text Processing and Computational Linguistics, pages 1–15 Berlin: Springer. Eduard

Ngày tải lên: 22/02/2014, 03:20

... data in which none of that is necessary, a world in which all pipeline datasets are contained in the single table that is their destination or their point of origin In this world, maintaining ... enhance systems used in education, finance, health care, insurance, manufacturing, retailing and transportation—all industries in which the authors have had consulting experience In using these methods, ... makes that terminology a lingua franca within business IT departments xi xii PREFACE leading computer scientist in the field In this book, Developing Time-Oriented Database Applications in SQL (MorganKaufmann,...

Ngày tải lên: 24/12/2013, 02:16

... interested in, two of those components being time periods that may or may not intersect in various ways Continuing on, consider the possibilities involved in joining bi-temporal tables to one another, ... management losing faith in data warehouse projects As these large projects fell increasingly behind schedule and rose increasingly over budget— something large projects tend to do—the pressure increased ... restoring them from off-line storage media After that, the next step was to realize that there was value, not just in having a particular set of backup data remain on-line, but also in having the...

Ngày tải lên: 24/12/2013, 02:16

... to the point in time we are interested in But the defining feature of reconstructable methods is not the movement of data from off-line to on-line storage The defining feature is the inability ... waiting for the data, and the decisions delayed until the data becomes available In an increasingly fast-paced business world, the opportunity cost of delays in accessing data is increasingly ... retrieve or update multiple rows in tables by coding a loop In doing so, we are writing a procedure; we are telling the computer how to retrieve the rows we are interested in So we wrote these loops,...

Ngày tải lên: 24/12/2013, 02:16

... designing and maintaining data models that must explicitly define temporal data structures and integrity constraints on them It also relieves developers of the burden of designing, writing and maintaining ... lacking a standard for the PERIOD datatype, we will continue the practice of defining periods of time in terms of their begin and end points in time 59 60 Chapter THE ORIGINS OF ASSERTED VERSIONING: ... by also internalizing them within their target tables In this book, we will show how the use of these internalized managed objects reduces the costs of maintaining databases by replacing external...

Ngày tải lên: 24/12/2013, 02:16

... just one kind of internalized pipeline dataset, and the internalization of pipeline datasets can eliminate a large part of the IT maintenance budget by eliminating the need to manage pipeline datasets ... perhaps joining data that the production queries did not have to join, perhaps assembling intermediate results and then combining those intermediate results in various complicated ways In short, ... case in which one of the two time periods is a point in time, i.e is exactly one clock tick in length, and the other one contains two or more clock ticks This point in time may either [intersect]...

Ngày tải lên: 24/12/2013, 02:16

... have been using is inadequate, because it only allows us to pick out a “when in effect” point in time We also need to pick out a “when in the life of the data in the table” point in time And ... versioning to the next versioning best practice—temporal gap versioning 85 86 Chapter THE ORIGINS OF ASSERTED VERSIONING: IT BEST PRACTICES Temporal Gap Versioning Let’s begin by looking at the ... constraints on bi-temporal data as that data is maintained, Asserted Versioning makes queries against its tables nearly as easy to write as queries against conventional tables In the final section...

Ngày tải lên: 24/12/2013, 02:16

... in Y, which of the multiple rows in X, all representing the same object, is that row in Y dependent on? Which row in X does the foreign key in Y point to? The answer is that the foreign key in ... insert, update or delete transactions, it will seem to them that they are maintaining data in a conventional table This maintenance is not done by writing SQL transactions; it is done by making ... present an in- line notation for single asserted Managing Time in Relational Databases Doi: 10.1016/B978-0-12-375041-9.00006-6 Copyright # 2010 Elsevier Inc All rights of reproduction in any form...

Ngày tải lên: 24/12/2013, 02:16

... are known Perhaps in another insurance company, all policies stop being in effect at the end of each calendar year In that case, instead of an effective end date of 12/31/9999 in rows and 3, the ... tick, which indicates what time it is in the example; (ii) A temporal insert, update or delete transaction; (iii) A calendar timeline covering approximately four years, in monthly increments; ... update in ways whose results not reflect what the person writing the updates intended to And they can be difficult to interpret, as we just said Asserted Versioning attempts to eliminate this maintenance...

Ngày tải lên: 24/12/2013, 02:16

... Transaction An insert into a non-temporal table is valid just in case a row for the object does not exist in the target table at the time of the insert In the same way, a temporal insert into an asserted ... of “filling in the gap” between those two episodes, merging them into a single episode In this chapter, however, we assume that our temporal insert creates a new episode An episode begin date ... transactions against non-temporal tables insert, update or delete individual rows representing objects, transactions against asserted version tables insert into a period of time, update within a period...

Ngày tải lên: 21/01/2014, 08:20