Metadata

1. Data scope, limitations and quality

 

The search for websites reporting price information focused on the UNECE region (Europe, North America and CIS) and Asia-Pacific (Australia, Japan and New Zealand). Secondary processed wood products (SPWP) were not considered in this study since these products do not have common international standards regarding specifications and grades. Information sources represent different organization types, ranging from timber merchant to national forest and statistical agencies. Data quality (i.e. correctness, timeliness and usability of data) varies greatly across organization types.



2. Methodology

 

The metadata schema was an extension of the Dublin Core schema (table 1 below). In addition to the original Dublin Core elements, elements specific to the information needs of forest products price information were added (table 2 below). The extraction of metadata proceeded with an automatic online extraction tool, DC-Dot. Currently, only 12 metadata elements for which complete data is available are shown on each record page.



3. Product and product category

Products and product categories are defined according to the UNECE/FAO/ITTO/EUROSAT JOINT FOREST SECTOR QUESTIONNAIRE (JFSQ). The products of interest included sawlogs, firewood, pulpwood, sawnwood, wood pellets, veneer, plywood, particle board, medium density fiber board, and various grades of pulp and paper. They were grouped under the following headings: industrial roundwood, wood fuel, wood pellets, sawnwood, wood-based panel and pulp and paper. The category wood pellet is an exception to the JFSQ grouping; it is in a category of its own to mark its growing importance in the wood energy sector.



Table 1. Dublin Core metadata elements


Element

Definition

Title

A name given to the resource

Creator

An entity primarily responsible for making the resource

Subject

The topic of the resource

Description

An account of the resource

Publisher

An entity responsible for making the resource available

Contributor

An entity responsible for making contributions to the resource

Source A related resource from which the described resource is derived.

Date

A point or period of time associated with an event in the lifecycle of the resource

Type

The nature or genre of the resource

Format

The file format, physical medium, or dimensions of the resource

Identifier

An unambiguous reference to the resource within a given context

Language

A language of the resource

Relation

A related resource

Rights

Information about rights held in and over the resource

 

Table 2. Additional metadata elements


Element

Definition

Market area *

The spatial or temporal topic of the resource, the spatial applicability of the resource, or the jurisdiction under which the resource is relevant

Access

The ease of having a contact to a resource

Audience

The intended users of a resource

Unit of quantity

A measure of volume or weight

Unit of value

A measure of currency value

Periodicity

The interval between the last  version of a resource and the updated version

Information available since

The start year from which a resource became available

Year of last update

The last  year from which a resource is available

Data collection process

A related resource from which the described resource is derived

Contact point

Who is responsible for a resource

Publishing medium

The medium through which a resource arrives to its audience

Country

The location of a resource usually actual place but it can be electronic place

Product

Name of forest products

Species

Commercial species names in English language

 

* Corresponds to the Dublin Core element Coverage